{"api_version":"1","generated_at":"2026-07-23T10:59:02+00:00","cve":"CVE-2026-45853","urls":{"html":"https://cve.report/CVE-2026-45853","api":"https://cve.report/api/cve/CVE-2026-45853.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-45853","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-45853"},"summary":{"title":"drm/amdgpu: Use kvfree instead of kfree in amdgpu_gmc_get_nps_memranges()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: Use kvfree instead of kfree in amdgpu_gmc_get_nps_memranges()\n\namdgpu_discovery_get_nps_info() internally allocates memory for ranges\nusing kvcalloc(), which may use vmalloc() for large allocation. Using\nkfree() to release vmalloc memory will lead to a memory corruption.\n\nUse kvfree() to safely handle both kmalloc and vmalloc allocations.\n\nCompile tested only. Issue found using a prototype static analysis tool\nand code review.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-27 14:16:57","updated_at":"2026-06-25 21:08:17"},"problem_types":["CWE-787"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}}],"references":[{"url":"https://git.kernel.org/stable/c/0c44d61945c4a80775292d96460aa2f22e62f86c","name":"https://git.kernel.org/stable/c/0c44d61945c4a80775292d96460aa2f22e62f86c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/16e7e7ad8cdc6b4c4af7f31e262f1494c1b2a55e","name":"https://git.kernel.org/stable/c/16e7e7ad8cdc6b4c4af7f31e262f1494c1b2a55e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9ae85b0c1909b6c6bfd2636b04cdaf7f520bf2b5","name":"https://git.kernel.org/stable/c/9ae85b0c1909b6c6bfd2636b04cdaf7f520bf2b5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f441538893eba6347b983f2904819ca6c99da65e","name":"https://git.kernel.org/stable/c/f441538893eba6347b983f2904819ca6c99da65e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-45853","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45853","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b194d21b9bcc15b50df1bc3ff7428e51c2918a6f 16e7e7ad8cdc6b4c4af7f31e262f1494c1b2a55e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b194d21b9bcc15b50df1bc3ff7428e51c2918a6f 9ae85b0c1909b6c6bfd2636b04cdaf7f520bf2b5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b194d21b9bcc15b50df1bc3ff7428e51c2918a6f f441538893eba6347b983f2904819ca6c99da65e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b194d21b9bcc15b50df1bc3ff7428e51c2918a6f 0c44d61945c4a80775292d96460aa2f22e62f86c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2026","cve_id":"45853","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"45853","cve":"CVE-2026-45853","epss":"0.000180000","percentile":"0.048460000","score_date":"2026-06-01","updated_at":"2026-06-02 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the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: Use kvfree instead of kfree in amdgpu_gmc_get_nps_memranges()\n\namdgpu_discovery_get_nps_info() internally allocates memory for ranges\nusing kvcalloc(), which may use vmalloc() for large allocation. Using\nkfree() to release vmalloc memory will lead to a memory corruption.\n\nUse kvfree() to safely handle both kmalloc and vmalloc allocations.\n\nCompile tested only. Issue found using a prototype static analysis tool\nand code review."}],"providerMetadata":{"dateUpdated":"2026-05-27T12:15:27.453Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/16e7e7ad8cdc6b4c4af7f31e262f1494c1b2a55e"},{"url":"https://git.kernel.org/stable/c/9ae85b0c1909b6c6bfd2636b04cdaf7f520bf2b5"},{"url":"https://git.kernel.org/stable/c/f441538893eba6347b983f2904819ca6c99da65e"},{"url":"https://git.kernel.org/stable/c/0c44d61945c4a80775292d96460aa2f22e62f86c"}],"title":"drm/amdgpu: Use kvfree instead of kfree in amdgpu_gmc_get_nps_memranges()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-45853","datePublished":"2026-05-27T12:15:27.453Z","dateReserved":"2026-05-13T15:03:33.079Z","dateUpdated":"2026-05-27T12:15:27.453Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-27 14:16:57","lastModifiedDate":"2026-06-25 21:08:17","problem_types":["CWE-787"],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.12.75","matchCriteriaId":"A05DCA5C-0E7E-47B5-899A-41DDF296199E"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"6.18.14","matchCriteriaId":"BF463CB7-1F58-4607-B847-77ED23E4B9B7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"6.19.4","matchCriteriaId":"672A3E79-EC03-479D-8503-361DFBDC8092"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"45853","Ordinal":"1","Title":"drm/amdgpu: Use kvfree instead of kfree in amdgpu_gmc_get_nps_me","CVE":"CVE-2026-45853","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"45853","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: Use kvfree instead of kfree in amdgpu_gmc_get_nps_memranges()\n\namdgpu_discovery_get_nps_info() internally allocates memory for ranges\nusing kvcalloc(), which may use vmalloc() for large allocation. Using\nkfree() to release vmalloc memory will lead to a memory corruption.\n\nUse kvfree() to safely handle both kmalloc and vmalloc allocations.\n\nCompile tested only. Issue found using a prototype static analysis tool\nand code review.","Type":"Description","Title":"drm/amdgpu: Use kvfree instead of kfree in amdgpu_gmc_get_nps_me"}]}}}